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Year 9 Chemistry
Test Description: Year 9 Chemistry Questions for Sarina State High School 2015
Instructions: Answer all questions to get your test result.
1) Which of these is not a sign of a chemical Reaction
A
Temperature change
B
Change of Colour
C
Bubbles (gas) produced
D
Change of state (liquid, solid, gas)
2) The atomic number is the same as:
A
the number of neutrons
B
The number of protons
C
The number of electrons
D
The number of atoms
3) In a chemical equation the PRODUCTS are:
A
What you buy in a shop
B
The chemicals we finish with
C
The chemicals we begin with
D
The finished equation
4) Which of these is a physical change?
A
Tractor Rusting
B
Pop Corn Popping
C
Wood Burning
D
Icecream Melting
5) Which of these is a chemical change
A
Egg Cooking
B
Cutting Paper
C
Making Coffee
D
Kettle Whistling
6) In a chemical reaction (pick the one that is wrong!)
A
We start and finish with the same thing
B
We can't (easily) reverse the change
C
A new substance is formed
D
The old substance is destroyed
7) ______ means all atoms of the same type
A
Molecule
B
Compound
C
Mixture
D
Element
8) A mixture is ...
A
A machine to mix cakes with
B
Different atoms bonded together
C
A bunch of molecules of different types mixed together
D
The same atoms bonded together
9) Which sign of a chemical change can we see here - A piece of toast has been burned
A
A change in temperature
B
Bubbles (gas) produced
C
A change of colour
D
A precipitate is formed
10) The Symbol H stands for
A
Oxygen
B
Helium
C
Hydrogen
D
Halfnium
*select an answer for all questions
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